Very useful markers, I will definitely order more of them.

A very good element for working on metals

I have not used these yet, but these are the same things I used to use in my work paint pens or marking precision marks well worth what you pay

Versatile: Can be used on various surfaces such as metal, plastic, wood, and more.

Extended nib: 20mm nib for deep hole marking and precise writing.

Five vibrant colors: Red, black, blue, white, and green for all your marking needs.

Multi-functional: Ideal for bathroom, woodworking, decoration, and more.

Durable: Made with high-quality materials for long-lasting use.

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5pcs/set Extended Nib 20MM Red Black Blue White Green Ink Long Head Markers Bathroom Woodworking Decoration Metal Plastic Wood Multi-functional Write Deep Hole Marker Pens